finally add a good tmpfile function

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18890 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/libroot/posix/glibc/include/unistd.h

@@ -19,4 +19,7 @@
 #define __lseek(fd, pos, whence) \
 	lseek(fd, pos, whence)
 
+#define __unlink(buf) \
+	unlink(buf)
+
 #endif	/* _LIBC_UNISTD_H */

src/system/libroot/posix/glibc/libio/Jamfile

@@ -69,7 +69,6 @@ MergeObject posix_gnu_libio.o :
 	iovsprintf.c
 	iovsscanf.c
 #	obprintf.c
-	oldtmpfile.c
 	pclose.c
 	peekc.c
 	putc.c

src/system/libroot/posix/glibc/stdio-common/Jamfile

@@ -39,6 +39,7 @@ MergeObject posix_gnu_stdio.o : #_common.o :
 	sscanf.c
 	tempnam.c
 	tempname.c
+	tmpfile.c
 	tmpnam.c
 	tmpnam_r.c
 	vfprintf.c

src/system/libroot/posix/glibc/stdio-common/tmpfile.c

@@ -0,0 +1,66 @@
+/* Open a stdio stream on an anonymous temporary file.  Generic/POSIX version.
+   Copyright (C) 1991,93,1996-2000,2002,2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdio_private.h>
+#include <unistd.h>
+
+#ifdef USE_IN_LIBIO
+# include <iolibio.h>
+# define __fdopen INTUSE(_IO_fdopen)
+# ifndef tmpfile
+#  define tmpfile __new_tmpfile
+# endif
+#endif
+
+#ifndef GEN_THIS
+# define GEN_THIS __GT_FILE
+#endif
+
+/* This returns a new stream opened on a temporary file (generated
+   by tmpnam).  The file is opened with mode "w+b" (binary read/write).
+   If we couldn't generate a unique filename or the file couldn't
+   be opened, NULL is returned.  */
+FILE *
+tmpfile (void)
+{
+  char buf[FILENAME_MAX];
+  int fd;
+  FILE *f;
+
+  if (__path_search (buf, FILENAME_MAX, NULL, "tmpf", 0))
+    return NULL;
+  fd = __gen_tempname (buf, GEN_THIS);
+  if (fd < 0)
+    return NULL;
+
+  /* Note that this relies on the Unix semantics that
+     a file is not really removed until it is closed.  */
+  (void) __unlink (buf);
+
+  if ((f = __fdopen (fd, "w+b")) == NULL)
+    __close (fd);
+
+  return f;
+}
+
+#if defined USE_IN_LIBIO && GEN_THIS == __GT_FILE /* Not for tmpfile64.  */
+# undef tmpfile
+# include <shlib-compat.h>
+versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
+#endif